Title :
Heart rate dependent changes in spectral analysis
Author :
Haaksma, J. ; Brouwer, J. ; Dijk, W.A. ; Mulder, L.J.M. ; Crijns, H.J.G.M. ; Lie, K.I.
Author_Institution :
Dept. of Cardiology, Groningen Univ., Netherlands
Abstract :
Analysis of heart rate variability (HRV) is used to study the influence of the autonomic nervous system on the heart For appropriate spectral analysis using fast Fourier transformation (FFT), resampling techniques like linear interpolation are often used. Some of these techniques however, introduce significant bias. We compared FFT using three different resampling techniques with discrete Fourier transformation (DFT) and concluded that spectral power is reproduced more accurately by DFT than by FFT using resampling techniques
Keywords :
discrete Fourier transforms; electrocardiography; fast Fourier transforms; interpolation; medical signal processing; neurophysiology; patient monitoring; signal sampling; spectral analysis; FFT; artificial ECG signals; autonomic nervous system; bias; fast Fourier transformation; heart rate dependent changes; linear interpolation; real ECG signals; resampling techniques; spectral analysis; spectral power; Cardiology; Discrete Fourier transforms; Electrocardiography; Frequency domain analysis; Heart rate; Heart rate variability; Interpolation; Psychology; Spectral analysis; Testing;
Conference_Titel :
Computers in Cardiology 1994
Conference_Location :
Bethesda, MD
Print_ISBN :
0-8186-6570-X
DOI :
10.1109/CIC.1994.470253
